Combined cultivator and harrow.



PATENTBD SEPT. 26, 1905.

r.109.800.514. W. H. TILLOU.

COMBINED CULTIVATOR AND HARRO'W.

APPLIOATIONAFILBD SEPT. 1, 1904.

2 SHEETS-BHEET No. 800,514. TATENTBD SEPT. ze, 1905.

` W. 1T. TILLOU. COMBINED GULTIVATOR AND HARROW.

APPLICATION FILED SEPT. l, 1904.

2 SHEETS-SHEET 2.

.Httevtw may if imag UNITED sTATEs PATENT oEEIcE.

COMBINED CULTIVATOR AND HAFFiW.v

Specification of Letters Patent.

Patented Sept. 26, 1905.

Application filed September l, 1904. Serial No. 223,027.

To all whom it may concern/.-

the appended claims.

The objects and advantages of the invention will be brought out and made to appear in the following specification, reference being had to the accompanying drawings, which, with the reference characters marked thereon,

form a part thereof.

Figure 1 is a plan of my improved cultivator and harrow, parts being shown in various positions by full and by dotted lines. Fig. 2 is a rear elevation of the same. Fig. 3 is a plan of a pivotal or swinging axle detached. Fig. i is an edge view of the axle seen as indicated by arrow 4 in Fig. 3. Fig. 5 is a view of the axle seen as indicated b v arrow 5 in Fig. 3. Fig. 6 is an end elevation of the combined machine seen as indicated by arrow 7 in Fig. 1, parts being shown in various positions by full and dotted lines. Fig. 7 is a side elevation of the middle bar for holding the ends of the tooth-shafts, the frame and the shafts being in vertical transverse section near the bar.

Figs. 3, 5, and 7 are drawn to various scales larger than that of Figs. 1, 2, and 6. Y

, A in the drawings is the frame of the machine; BB, the carrying-wheels; O, the drafttongue, and D the drivers seat.

if: k' 7a2 763, Figs. 1 and S2, are four horizontal tubular shafts or sections of shafts for holding a series'of spring-teeth H for cultivating or for harrowing, the shafts being held at their outer ends in cup-shape bearings a, Figs. 2 and 6, pending beneath and secured to the frame A. These shaft-sections are coaxial in pairs, the sections Ala lo together forming a forward divided shaft reaching from side to side of the frame and the sections 7a2 k3 forming a similar rear shaft, the inner adjacent ends of the several sections being held in cupbearings b, Figs. l, Q, and 7, secured on opposite sides of a middle cross-bar d, carried by the front and the rear timbers of the frame A. The sections of the shafts pierce intermediate cross-timbers E E of the frame A, in which timbers they have bearings, the I inner ends of all the sections abutting against the opposing surfaces of the middle bar d.

The tubular shaft-sections 7c c k2 7c3 are formed with longitudinal slots c, Fig. 2, through which to insert the heads of T-shape bolts e for holding the spring-teeth H to place on the sections, the slots c being elongated to admit of lateral adjustments of the teeth. By slightly turning the shaftsections in their bearings a one way or the other the teeth will be pressed into the ground or raised therefrom, as the case may be. For the purpose of turning the shafts hand-levers F F', Figs. 1, 2, and 6, are provided, secured to the respective front sections c 7c of the shaft by clamping-plates. To cause the rear shaft-sections cz 7c3 also to turn with the forward sections, they are provided with arms i Z, respectively, connected with the respective handlevers F F by link-bars m n. Thus connected, each hand-lever serves to simultaneously turn both shaft-sections at the right or the left of the middle bar d.

The hand-levers F F operate in combination with curved toothed racks g g, secured to the respective cross-timbers E E of the frame A, these toothed racks being concentric with the shaft-sections la k' respectively. The hand-levers are provided with spring -controlled pawls h la of common construction for engaging the teeth of the racks, said levers and the pawls being in convenient reach of the driver occupying the seat D. On account of the shaft-sections 7c 762 and k3 at the two sides of the machine being independent of each other the spring-teeth H at either side of the machine may be lifted or depressed independent of those at the other side, using the handlevers, as desired, Vthis being frequently necessary, as when passing obstructions on one side or the other of the center line of the machine or for other purposes, and by moving both hand-levers alike, forward or backward, all the teeth of the machine may be either lifted clear of the ground, as indicated by full lines in Fig. 6, or depressed to work the ground, as indicated by the dotted lines in the figure, the teeth being lifted, as shown, when the machine is being moved from place to place without operating.

The plants or vegetation-as beans, for exampleto be cultivated are in parallel rows commonly put in by a drill, three rows being planted ata time. These rows are frequently more or less devious or crooked, and in cul- IOO IIC

tivating much difhculty is frequently experienced in endeavoring to cultivate sufiiciently close to the rows or the hills to remove the weeds and still avoid disturbing the plants where abrupt bends occur in the rows. To overcome this diiiiculty, provision is made for slightly swinging the carrying-wheels B B one way or the other independent of the frame A to cause the cultivator to swerve toward the right or the left as the crooking of the rows may require. The axles p p, Figs. l to 5 and 6, forthe wheels are not rigid with the frame A, but are held upon vertical pivotbolts 0 0, so as to turn in horizontal directions on the frame, causing the wheels to assume dierent positions in vertical planes, as indicated in Fig. 1. Against the rear side of the frame A is placed an elongated toothed body or rack r, Figs. l, 2, and 6, held to the framev by some ordinary means, so as to have shortlongitudinal motions on its bearings. As shown, this toothed rack fr is formed with horizontal slots s s, Fig. 2, bolts t, occupying the slots and entering the frame, serving to hold it in place; but the particular manner of securing the rack to the frame is not essential to my invention, the aim being to secure the rack so that it may have free longitudinal motions to the right or to the left on its bearing on the frame. Above the rack fr is a toothed segment a, Figs. 1, 2, and 6, held to turn in a vertical plane on a pivot-bolt o, projecting horizontally from a rigid standard w, rising from the frame A, the teeth of the segment engaging with the teeth of the rack 7, as shown. tigid with the segment u is a short bar fr, adapted to rock in a vertical plane on the bolt/v, the two equal ends of the bar being provided with foot-rests or stirru ps 'y y for the feet of the driver occupying the seat D. To the axles p g1, carrying the wheels B B, are secured bent arms e e, Figs. l to 5 and 6, extending rearwardly from the frame A, connecting-loars being joined pivotally to the projecting ends of the arms, respectively, and to the ends of the toothed rack r in flexible joints c' c', Fig. 2. From this it will be understood that if the driver by pressing downward against either stirrup y with his foot tilt the rocking bar fr; one way or the other the two axles p p will be simultaneously correspondingly turned on their bearings 0 0 and so cant the carrying-wheels B B or swing them to oblique positions one way or the other, as appears in Fig. l. The connections of the parts are such that in every case both wheels must turn or swing alike and in the same direction, which canting of the wheels will cause the cultivator to run obliquely toward the right or the left, as the case may be, and so follow the sinuous rows independent of the team and without reining it from its course.

The cultivator is designedv to cultivate and complete three rows of plants at a time, the

intermediate row passing under the middle line of the cultivator represented by the dotand-dash line d. with the two extreme teeth at either side outside of the two outer rows. When using the machine as a cultivator, the middle tooth, normally held at the inner end of the shaft-section 71:, is removed, and the driver upon the seat looking downward through the frame A at the middle row may readily see thevcrooks orirregularities therein and so know when and in which direction to swerve the cultivator by pressing one or the other of the stirrups g/ with his foot, as stated. The middle bar d, holding the inner ends of the various shafts for carrying the teeth, is preferably curved or offset, asshown, though this is not wholly essential to the invention.

l Besides holding the ends of the shafts this bar Z carries a downwardly-projecting arm or pointer c, Figs. l, 2, and 6, the lower end of which serves to indicate the position of the cultivator with reference to the middle row being cultivated, the attendant occupying the seat D, controlling the cultivator to keep thc end of the pointer as nearly as possible directly over said row.

In addition to furrowing the ground near to the rows of plants it is also desirable to, in some cases, provide for the cultivator parts or elements to brush over or abrade the ground in close proximity to the plants for the purpose of breaking over and killing small weeds that escape the teeth of the cultivater. Such parts are shown at I.

l/Vhen the implement is used as a harrow, the lingers I and the pointer c" are omitted, the middle spring-tooth being replaced on the inner end of the shaft-section it, Fig. 1, this tooth being removed when the machineis used as a cultivator to be out of the Way of the middle row being cultivated.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. A frame, carrying-wheels therefor, axles for said wheels mounted on vertical pivots, a bar at the middle of the frame and adapted to serve as an indicator for the steering of the device, bent arms secured to said axles, a connecting-bar pivotally joined to said arms, a toothed rack connected by iiexible joints withv said bar, a rocking bar, a segment engaging said rack, and connected rigidly with said rocking bar to rock the bar in a vertical plane and stirru ps connected with opposite ends of said bar.

2. A frame having slots for the passage of bent arms, carrying-wheels for said frame, axles for said wheels mounted on vertical pivots, a bar at the middle of the frame and adapted to serve as an indicator for the steer-y ing of the device, bent arms secured to said axles and passed through said slots, a rack connected by flexible joints with a bar, said bar pivotally connecting said arms, said rack -being -mounted for longitudinal movement on IOO IOS

IIO

the said frame within fixed limits, a segment engaging said rack, a rocking bar rigid with said segment to rock in a vertical plane. and stirrups connected with the opposite ends of said bar.

3. A frame, carrying-Wheels for said frame, a middle bar on the frame serving as an indicator for the steering of the device, axles for the carrying-'Wheels mounted on pivotbearings on said frame, and means for turning said axles on their bearings.

4. Aframe, carrying-Wheels therefor, axles for said Wheels mounted on vertical pivots, a middle bar adapted to serve as an indicator for the steering of the machine, bent arms, connected to said axles, a bar pivotallyjoined to said arms, a toothed rack iexibly connected with said bar, a rocking device, a segment rigid with said rocking device engaging the rack, and stirrups at the ends of said rocking device.

In Witness whereof I havehereunto set my hand, this 27th day of August, 1904, in the presence of two subscribing witnesses.

WILLIAM H. TILLOU.

Witnesses:

M. C. DONNAN, A. R. DAVIS. 

